Growth Performance of Adaptive Oil Palm Seedlings on Marginal Soils through the Application of Cow Biourine

Novianto , Alnopri , Muhammad Barchia, Hesti Pujiwati, Zainal Muktamar and Rustikawati

Background and Objective: Oil palm is one of the leading plantation crops compared to other plantation crops, because its processed products generate high economic value and contribute to the country’s foreign exchange earnings. The purpose of this study was to produce oil palm seedlings that are adaptive to marginal growing media with the addition of liquid organic fertilizer from cow biourine. Materials and Methods: This study used a Complete Randomized Block Design (CRBD) factorially and the data were analyzed using Analysis of Variance (ANOVA), thereby obtaining the best adaptive oil palm varieties on various marginal soils as follows: (A1) Adaptive Themba varieties on sub-ultisol soil at a depth of 0-50 cm, (A2) Adaptive Icalix varieties on sub-ultisol soil at a depth of 51-100 cm, (A3) Adaptive Spring varieties on sub-ultisol soil at a depth of 101-150 cm, (A4) Adaptive Spring to Marginal Histosol Soil and (A5) Adaptive Themba to Marginal Entisol Soil. The marginal soil characteristics used in this study are less fertile soils in dryland soils for second-layer ultisols and wetland soils in histosols and entisols and Cattle Biourine. Data were analyzed by ANOVA, with significance determined at 5 and 1% levels based on F-values. Results: The results of the diversity analysis show that the interaction between adaptive oil palm seedling treatments and cow urine application (I) had a very significant effect on the wet weight of seedlings and root weight and a significant effect on root volume. Conclusions: It is recommended that adaptive varieties be used through interaction between themba varieties in entisol growing media with 40% cow biourine concentration treatment (A5B2), which gives a positive response to plant growth.

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